import java.io.*;

import java.math.*;

import java.security.*;

import java.security.spec.*;

import javax.crypto.*;

import javax.crypto.spec.*;

import javax.crypto.interfaces.*;
public class Key_DH{

    private static final byte skip1024ModulusBytes[] = {

            (byte)0xF4, (byte)0x88, (byte)0xFD, (byte)0x58,

            (byte)0x4E, (byte)0x49, (byte)0xDB, (byte)0xCD,

            (byte)0x20, (byte)0xB4, (byte)0x9D, (byte)0xE4,

            (byte)0x91, (byte)0x07, (byte)0x36, (byte)0x6B,

            (byte)0x33, (byte)0x6C, (byte)0x38, (byte)0x0D,

            (byte)0x45, (byte)0x1D, (byte)0x0F, (byte)0x7C,

            (byte)0x88, (byte)0xB3, (byte)0x1C, (byte)0x7C,

            (byte)0x5B, (byte)0x2D, (byte)0x8E, (byte)0xF6,

            (byte)0xF3, (byte)0xC9, (byte)0x23, (byte)0xC0,

            (byte)0x43, (byte)0xF0, (byte)0xA5, (byte)0x5B,

            (byte)0x18, (byte)0x8D, (byte)0x8E, (byte)0xBB,

            (byte)0x55, (byte)0x8C, (byte)0xB8, (byte)0x5D,

            (byte)0x38, (byte)0xD3, (byte)0x34, (byte)0xFD,

            (byte)0x7C, (byte)0x17, (byte)0x57, (byte)0x43,

            (byte)0xA3, (byte)0x1D, (byte)0x18, (byte)0x6C,

            (byte)0xDE, (byte)0x33, (byte)0x21, (byte)0x2C,

            (byte)0xB5, (byte)0x2A, (byte)0xFF, (byte)0x3C,

            (byte)0xE1, (byte)0xB1, (byte)0x29, (byte)0x40,

            (byte)0x18, (byte)0x11, (byte)0x8D, (byte)0x7C,

            (byte)0x84, (byte)0xA7, (byte)0x0A, (byte)0x72,

            (byte)0xD6, (byte)0x86, (byte)0xC4, (byte)0x03,

            (byte)0x19, (byte)0xC8, (byte)0x07, (byte)0x29,

            (byte)0x7A, (byte)0xCA, (byte)0x95, (byte)0x0C,

            (byte)0xD9, (byte)0x96, (byte)0x9F, (byte)0xAB,

            (byte)0xD0, (byte)0x0A, (byte)0x50, (byte)0x9B,

            (byte)0x02, (byte)0x46, (byte)0xD3, (byte)0x08,

            (byte)0x3D, (byte)0x66, (byte)0xA4, (byte)0x5D,

            (byte)0x41, (byte)0x9F, (byte)0x9C, (byte)0x7C,

            (byte)0xBD, (byte)0x89, (byte)0x4B, (byte)0x22,

            (byte)0x19, (byte)0x26, (byte)0xBA, (byte)0xAB,

            (byte)0xA2, (byte)0x5E, (byte)0xC3, (byte)0x55,

            (byte)0xE9, (byte)0x2F, (byte)0x78, (byte)0xC7

    };

    // The SKIP 1024 bit modulus

    private static final BigInteger skip1024Modulus

            = new BigInteger(1, skip1024ModulusBytes);

    // The base used with the SKIP 1024 bit modulus

    private static final BigInteger skip1024Base = BigInteger.valueOf(2);

    public static void main(String args[ ]) throws Exception{

        DHParameterSpec DHP=

                new DHParameterSpec(skip1024Modulus,skip1024Base);



        KeyPairGenerator kpg= KeyPairGenerator.getInstance("DH");

        kpg.initialize(DHP);

        KeyPair kp=kpg.genKeyPair();



        PublicKey pbk=kp.getPublic();

        PrivateKey prk=kp.getPrivate();

        // 保存公钥

        FileOutputStream  f1=new FileOutputStream(args[0]);

        ObjectOutputStream b1=new  ObjectOutputStream(f1);

        b1.writeObject(pbk);

        // 保存私钥

        FileOutputStream  f2=new FileOutputStream(args[1]);

        ObjectOutputStream b2=new  ObjectOutputStream(f2);

        b2.writeObject(prk);

    }

}
